Recent National Weather Service guidance and ensemble model consensus point to a daily high near 70–72°F at Los Angeles International Airport on May 18, driven by a persistent marine layer and moderate onshore flow that limits afternoon warming along coastal Southern California. This meteorological setup, typical for mid-May, has anchored trader consensus around the 70–71°F and 72–73°F bins, which together imply over 76 percent probability. Historical climatology shows May highs averaging 72–74°F downtown, but the current onshore regime favors slightly cooler readings. Forecasters will issue updated model runs and official advisories overnight, with any shift in marine layer depth or wind patterns likely to move implied probabilities before resolution tomorrow.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Los Angeles on May 18?
70-71°F 47%
72-73°F 31%
74°F or higher 13%
68-69°F 10%
$13,362 Vol.
$13,362 Vol.
55°F or below
<1%
56-57°F
<1%
58-59°F
<1%
60-61°F
1%
62-63°F
1%
64-65°F
1%
66-67°F
3%
68-69°F
10%
70-71°F
47%
72-73°F
31%
74°F or higher
13%
70-71°F 47%
72-73°F 31%
74°F or higher 13%
68-69°F 10%
$13,362 Vol.
$13,362 Vol.
55°F or below
<1%
56-57°F
<1%
58-59°F
<1%
60-61°F
1%
62-63°F
1%
64-65°F
1%
66-67°F
3%
68-69°F
10%
70-71°F
47%
72-73°F
31%
74°F or higher
13%
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Los Angeles International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/ca/los-angeles/KLAX.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: May 16, 2026, 12:05 AM ET
Resolution Source
https://www.wunderground.com/history/daily/us/ca/los-angeles/KLAXThe resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Los Angeles International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/ca/los-angeles/KLAX.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Resolution Source
https://www.wunderground.com/history/daily/us/ca/los-angeles/KLAXRecent National Weather Service guidance and ensemble model consensus point to a daily high near 70–72°F at Los Angeles International Airport on May 18, driven by a persistent marine layer and moderate onshore flow that limits afternoon warming along coastal Southern California. This meteorological setup, typical for mid-May, has anchored trader consensus around the 70–71°F and 72–73°F bins, which together imply over 76 percent probability. Historical climatology shows May highs averaging 72–74°F downtown, but the current onshore regime favors slightly cooler readings. Forecasters will issue updated model runs and official advisories overnight, with any shift in marine layer depth or wind patterns likely to move implied probabilities before resolution tomorrow.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated



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